Check-head device.



E. vH. SNYDER.

CHECK HEAD DEVICE.

APPLICATION FILED H2B. 12 1914. 4

1.,27fa,'7'22.'v Patented .my 16, 1918. 1

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EMMANUELL HENRY SNYDER, OF DAVENPORT, IOWA.

CHECK-HEAD DEVICE.

To all 'whom it may concern Be it known that I, EMMANUELL HENRY SNYDER, a citizen of the Unitedv States of America, residing at Davenport, in Scott county, State of Iowa, have invented a new and useful Check-Head'Device to be Used in Connection with and as Part of Any Corn-Planter, of which check head device the following is a specification.

The objects of my invention and improvement, are:

To provide means in a check-row corn planter of securing evenness of drop;

To provide means of better securing, grasping, gripping, holding, and releasing the check-row wire in a grasp, trip and release action. y

' To provide a check head of simpler construction, lighter weight and which would be less liable to get out of repair.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the disk box with the outer plate removed showing -the disk and the spring operated pawl.

Fig. 2 is a like view showing the disk box with the outer plate thereon.

Fig. 3 is an edge view of the disk box showin the prongs thereof.

Simi ar .Arabic numerals refer to similar parts throughout the several views.

The check head device when assembled and mounted is attached upon either end of a rock shaft for the purpose of turning the same, when brought into contact with the check-row wire in check rowing, and is a metallic box containing an irregular or escalloped disk having a hub, the boxhaving two parallel prongs attached, and having inside, certain spring devices and pins, fixed, for regulating the movements of the disk.

Numeral 123 represents the thin blade of the escalloped disk which revolves in one direction only in the disk box; 125 represents the hub of the escalloped disk containing the grooved hole in the hub 1261 whereby the same is secured upon the drop shaft, the hub being journaled in the disk box by the holes 127, thus allowing the disk to be yfixed upon the drop shaft, and yet move freely within the disk box unto which the prongs are fastened by screws.

In the disk box, 135 represents a milled box of a Size suitable to receive the escal- Aloped disk, and instead of being ml1ed,may

Specification of Letters Patent.

Patented J 11131816, 191.8.

be made of metal, the sides of the box being in such case laid on the same. In the upper and pole-side corner of the disk box, there is an opening to receive a short semi-circular pawl, as shown in Fig. 1 this pawl is secured to the sides of the box and held in place by a pin 131; which pawl, when at rest and at the highest point of the pressure of the circle of the escalloped disk 123, rests wholly within the rectangular cavity, outside the true circle of the disk box 138 but as the disk within is revolved recedingly from the shoulder or crest of the escallops the vibrating end of the pawl containing the milled hole 130, is forced by the coil spring 133 acting on the pin 131 as shown in Fig. 1 at 133, 134 to drop into the escalloped notch 124 of the disk while the pawl is suspended at its other end on pin 131 forming a brace against which the disk 123 cannot revolve. Thus the check head fork being pressed by movement of the planter against the knobs of the check-row wire, rotates the disk box by reason of a pawl abutting against the shoulder 124 of the disk 123. The disk 137 is returned to its normal or inactive position by a coil spring attached to the eye 132.

The coil spring 133 is inserted in a miiled hole in pawl 128 and held in place by a pin 134, which pin is secured at one end in the outer edge of the rectangular recess at the upper side of the disk box, and supports said spring. The in is short enough to allow the escalloped disk 123 to clear it at all times in passing and revolving in its operay tion and being sufficiently short also to allow the pawl 128 in which the spring acts to recede within the rectangular recess, in allowing the disk 123 to pass or clear in its revolutions.

Having inserted in the disk box 138, the escalloped disk 123, and the pawl 128, and having pivoted the pawl by pin 131, and having attached the pin 134, and having mounted thereon the coil spring 133, inserted a milled hole, and having-placed thereon the side-plate of the disk box, in position corresponding as to form with disk box 138, the two are secured together by screws or bolt after which, there is attached to the pole or rectangular side of the disk box, on either side thereof and paralleling each other, two narrow, fiat, short bars of metal called prongs 139, presenting, when so attached, a pair of spikes forming a forlghavf..

.esealloped disk, a hole in said pawl -at its outer .end` a coil seated in Athe Ihole and holding the pnwl in `centznet with the esealloped disk, and an eye ibo-lt afttaoh-ed to the disk box fon its outer -oi' polled side.

.2. Aeheek head eoniposedio'f wn esoelloped .disk having any 'desired number of shoul.

ders in its-outer edge, ,a .hub 4on 'said disk protruding through the sides of the disk box, :a lug andslot ineens in thewhub of said disk for attaching the sanioto thfdo""- sheikh revolving disk.journaledfivithin vthe sides yof a disk box, -a disk box Covering the balance yof the disk not embraced as hub a. senil-Circuler pawl mounted 1n :L rectznn'gn.-

lar Cavity Within said disk box, e pziwl pivoted at one end to seid disk box, ai lhole in Said prawlfat its Yfliee end, a coil spring seated in the hole in the free end of said pawl and holding` the p21-Wl iin eontziet with the escalvlfoped disk, :zi [pi-n attached to the disk Ibox Within vthe reetangulsrr cavity :supporting the coil spring, a gpafir :of prongs zvttached'to the rectangular or polled sides of the Ydisk box f und forni-ing :a t'fo'l{,.a11eye blelt @ttes/hed to the disk box fon itsyon-ter lsind flipper `side o .p- ,posite the vaid pnengs. I

EMMANUELL HEN'RTY VSNXDER Vitness'es:

GLENN DURAN KELLY, Mei-BEL HANIEY.

,Copies of this paaent ymay I:be obtained for .rve cents each, fhy 4addressing the Gnmmissioner .ot-Patents, Washngtomh. 

